What is one common assessment used to measure flexibility?

The sit-and-reach test is a standard assessment used to measure flexibility, particularly in the hamstrings and lower back. During this test, an individual sits on the floor with legs extended and reaches toward their toes. The distance reached beyond the toes is recorded, providing a clear indication of flexibility in the posterior chain muscles. This test is widely recognized for its simplicity and effectiveness in gauging lower body flexibility, making it a fundamental component of many fitness assessments and training programs.

In contrast, other tests mentioned assess different components of fitness, such as power, muscular endurance, or cardiovascular fitness, rather than flexibility. Hence, the sit-and-reach test specifically targets the area of flexibility, making it the correct choice for this assessment.